#include<stdio.h>
#include<math.h> 
int main()
{
    double y;
    int x,m;
    for(y=1; y>=-1;y-=0.1){
        m=acos(y)*10;
        for(x=1;x<m;x++)printf(" ");
        printf("*");
        for(;x<62-m;x++)printf(" ");
        printf("*\n");
    }
   return 0;
}